Flow cryometer with cell sorting capability

From the notice

The National Physical Laboratory (NPL) is seeking engagement from suppliers who can provide a flow cytometer with cell sorting capability. The instrument should have capability for measuring and sorting cells using either light scattering and/or fluorescence. The ability to image cells i.e. imaging flow cytometer would be a preferred option. The ability to measure smaller sub-micron particles, for example viruses would be a preferred option.